Shimming axle..

  • Thread starter CruisinGA
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CruisinGA

CruisinGA

Joined
Mar 27, 2003
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6,277
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Georgia Tech
I'm gearing up to install my en-route Skyjacker 4". I know about extended brake lines, but I have one question, do I need to shim my axles to decrease driveline angles with only a 4" lift? I know that with SOA its normally done, just not sure about a SUA lift? :dunno:

Thanks in advance guys
Bailey
 
willsta2000

willsta2000

Joined
Sep 26, 2002
Messages
146
Location
Yakima, WA
Shimming should not be necessary... if you are "in tune" with your cruiser, pay attention to how it feels accelerating and decelerating... it will feel a little different to begin with (a little stiff, bouncy, and you might feel a little driveline vibration while the springs are still new. Take it out and drive it!!! You will have to wear the springs in!! If you wheel it,... get out there and articulate those springs! It may be a month or two before they have "settled" enough to where your shackles (assuming you still have stock) are anywhere close to the "ideal" 45 degree angle. If you are planning on running longer shackles as well, you will need to shim accordingly, to return your pinion angle to the same plane as your output shafts.
Bottom line: Wait a couple months, and see how your rig is "taking" to its new lift. Make sure your u-joints are adequately (not overly) greased, and you should have no problems.
 

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